training ms excel advanced - preventing duplicates in a

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training ms excel advanced - Preventing Duplicates In A List

resolvedResolved · Low Priority · Version Standard

Mark has attended:
Excel Advanced course
Access Introduction course

Preventing Duplicates In A List

Hi
I know how to extract duplicates from a list but is there any way to prevent them being entered in the first place.

I have a unique list of product codes and if i try to enter a code that already appears in the list, i need to be alerted.

Many thanks

Mark

RE: Preventing Duplicates In A List

Hi Mark,

You can do this in Access, by making the field a primary key, or by indexing the field in design view. select YES, No duplicates.

In excel I do no think that you can do this as it requires a dynamic list.

regards

Richard

 

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Excel tip:

Create your own custom list on Excel 2010!

If you know how to use the auto-fill option on Excel then why not create your own customs lists?

The auto fill feature saves you time by allowing you to enter one of the list entries into a cell and then use your mouse to automatically drag the rest of the list into the cells below, above or to either side of the initial cell. When using your mouse to perform this task you will see a thin black cross appear at the bottom right hand side of the cell. Click, hold and drag to make the list appear.

Default lists include weekdays and months. To create your own list in Excel 2010 do the following;

>File
>Options
>Advanced
>Scroll right to the bottom of the page and you will see a buttom "edit custom lists", click this button
>enter your list in the list entries
>click add

Now try it out. Good luck.
>

View all Excel hints and tips


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